Mysterious Arc of Light Spotted with Spitzer Telescope - Universe Today
From a JPL press release: Seeing is believing, except when you don’t believe what you see. Astronomers using NASA’s Hubble Space Telescope have found a puzzling arc of light behind an extremely massive cluster of galaxies residing 10 billion light-years away. The galactic grouping, discovered by NASA’s Spitzer Space Telescope, was observed as it existed … Continue reading "Mysterious Arc of Light Spotted with Spitzer Telescope"